Figure 10-3. Trunk Conditioning - ADTRAN Atlas 550 User Manual

Example 1
Example 2
1
DUAL T1/PRI
1
2
MON
2
PORT 1
DUAL V.35
NETWORK 1
NETWORK
T1 NETWORK MODULE
61200305L1-1
Setting Trunk Conditioning
The trunk conditioning process (see also, T1 Trunk Conditioning Service on
page 10-5) sets known values in the signaling bits and the data bits for out-
going DS0s which are cross-connected to a T1 port experiencing alarms. The
trunk conditioning process consists of a 2.5-second transmission (indicating
call termination), followed by a continuous transmission (signaling the final
condition as chosen by the user).
Use the trunk conditioning menu items T1 F
of the signaling bits) and T1 T
bits) for this process. You can set trunk conditioning for each end of each T1-
to-T1 connection in a dedicated map. To simplify this procedure, use the
copy command (press C). Connections to the Network and connections to
User equipment (PBX) contain different signaling bit states.
For this example, assume voice traffic is received on T1-A, and T1-B is
groomed onto T1-C to the PBX (see Figure 10-3). If T1-A fails, the DS0s which
were cross-connected to T1-C will receive trunk conditioning.
T1-A
T1-B
Creating A Dedicated Map
Any ATLAS 550 port supporting dedicated bandwidth can be mapped to
any other port supporting dedicated bandwidth. A dedicated map defines
connections for dedicated bandwidth between ports and also grooms and
cross-connects bandwidth between T1 ports. For this example, the central
ATLAS 550 is equipped as shown in Figure 10-4.
3
500 Series
4
PORT 2
500 Series 500 Series
NETWORK MON
IN OUT IN OUT
500 Series
TEST T1 NETWORK MODULE
Figure 10-4. ATLAS 550 with Modules Installed for Example 2
Example 2 (see Figure 10-5) contains three T1s (T1-A, T1-B, T1-C) that sup-
port dedicated bandwidth from three remote sites. Each remote T1 includes
DS0s for voice (1-8) and data (9-24). At the central site (the ATLAS 550), each
ATLAS 550 User Manual
Chapter 10. Dedicated Maps
S
AULT
C V
ROUBLE ODE ALUE
1 2 1 2
POWER OK OK STATUS
SYSTEM TEST TEST ONLINE
ETHERNET ERROR ERROR TEST
REMOTE ALARM ALARM MODULES
NETWORK
CRAFT
ACO

Figure 10-3. Trunk Conditioning

PORT 1 PORT 2
DUAL V.35
NETWORK 2
NETWORK NETWORK MON
IN OUT IN OUT
500 Series
TEST
(to set the state
IGNALING
(to set the state of the data
PBX
ATLAS 550
T1-C
3 4
500 Series
O I
O I
90-240VAC, 2A, 50/60Hz
FUSE RATING: 2A/250V SLO-BLO
ETHERNET CONTROL
RELAY ALARM
MON NC NO COM GND
IN OUT
10-7